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Submarine drop down 2m in 1 second
there fore
for every 1m it requires .5 second
and hence ,
for submarine to drop down to 60m it will require 30s i.e. ( 60*0.5)s
there fore
for every 1m it requires .5 second
and hence ,
for submarine to drop down to 60m it will require 30s i.e. ( 60*0.5)s
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